Ahydraulic machine can be used to lift extremely heavy objects. why is the fluid in the hydraulic machine a liquid rather than a gas

What is the radius of the circular path ofa charged particle in a magnetic field?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.